Improvement in drilling-machines



C. P. PHILI-PPI.

Drilling Machine.

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- Patented June 23, 1863'.

UNITED STATES PATENT ()FEICE.

CHARLES P. PHILIPPI, OF CROW'N POINT, INDIANA.

IMPROVEMENT IN DRILLING-MACHINES.

Specification forming part of Letters Patent No. 38.981, dated June 23, 1863.

; T0 aZZ whom, it may concern:

Be it known that I, QHARLES P. PHILIPPI, of Crown Point, Lake county, Indiana, have invented new and useful impro 'ements in drilling-machines to drill and bore holes in plates of metal; and I do hereby declare the following to be a full and exact description thereof, ret'erence'being had to the accompa nying drawings, and to the letters of reference marked thereon, making a part of this specification.

' The nature of my invention consists in the arrangement and combination of an adjusta ble drill with an adjustable bed-plate and frame.

To enable others skilled in the art to make and use my invention, I will proceed to de scribe its construction and operation. .I

A represents the frame or table upon which the devices are erected and operate.

13 is a movable and adjustable platform or bed-plate, operating in the grooves O of the side plates, D, which are located on each side of the table A, the bed-plate B having two legs, E, which work and slide in the grooves 0. Upon this bedplate B au'upright frame, G, is erected, consisting of two side posts and feet, H, the ends of the feet clasping tightly. to the bed-plate B. Near top of frame G is an arched brace, I, through the center of which an upright screw, J, operates and works upon a movable cross-beam, K. This beam K slides on the posts G up and down, the

ends of beam K being grooved, so as to fit and work easily against. the posts G. A piece of metal to be drilled is placed under the beam K and resting upon astrong cross-piece, L, underneath, 'and the beam K is then screwed down upon it to hold the plate firmly. The boring chisel or drill M is opposite to the metal to be drilled, and operates horizontallyin a screw-cylinder, N. by a lever or wheel, I. It has an adjustable vertical squareshaped screw, Q, which passes through the table A. and by which the cylinder N is raised and lowered. The wheel 1t and forked brace S assist in keeping the screw Q steady in its upright position.

T represents a set-screw to give the lateral motion to the frame G, so that the metal plate can be bored or drilled accurately at the points required to be .drilled; V, the set-screw that moves the platform B backward or forward to add pressure (during the operation ot'boring the metal) against the movement of the drill M and hold the platform steady.

What I claim as my invention, and desire to secure by Letters Patent, is-

The arrangement and combination of the adjustable square screw Q with cylinder N and drill M, arranged and operating on the table A, with the adjustable bed-plate B, asv

herein described, for drilling holes in plates of metal.

CHAS. P. PHILIPPI.

Witnesses:

J. FRANKLIN R-EIGAR'I,

J AMEs HICKEY. 

